Lock, bolt, or catch for doors, windows, shutters, or the like



T. P. CONLON. LOCK, BOLT, 0R CATCH FOR DOORS, WINDOWS, SHUTTERS, OR THE LIKE.

APPLICATION FILED OCT. 25. I915.-

Patented July 20, 1920.

3 SHEETS-SHEET I.

INVE/VTUH Thomas F? Con/2n.

I I B) A TTOR/VE Y T. P. CONLON.

LOCK, BOLT, 0R CATCH FOR DOORS, WINDOWS, SHUTTERS, OR THE LIKE. APPLICATION FILED OCT. 25, 1915.

1,347, 25 1 D L Patented July 20, 1920.

3 SHEETSSHEET 2.

WITNESSES: INVENTOR I 7770/7745 P Con/on.

ATTORNEY T. P. CONLON.

'LOCK, BOLT, OR CATCH FOR DOORS WINDOWS, SHUTTERS, OR THE LIKE. APPLICATION FILED OCT. 25, 1915.

Patented-July 20, 1920.

3 SHEETSSHEET 3.

WITNESSES: nvmv TOR 0 a, 6 Thomas Con /o/7.

ATTORNEY THOMAS P. CONLON, on NEW YonK, N. Y.

LOCK, BOLT, OR

7 Specification of Letters Patent.

CATCH FOR DOORS, WINDOWS, SHUTTERS, OR THE LIKE.

Patented July 20, 1920.

Application filed October 25. 1915. Serial No. 57,783.

To all whom it may com-em Be 1t known that I, Trioa ms'l CoNLoN, a

citizen of the United States of America. re-

siding in the borough of the Bronx city of New York, county of the Bronx, btate of New York, have invented a new and useful Lock, Bolt, or Catch for Doors, Vindows,

Shutters, or the like.

The present invention relates to improved locks or catches for doors, windows, shutters and the like, and particularly a lock, catch or bolt, which will automatically become positively deadlocked upon the closing of the door, so as to prevent any person from opening the same from the outside, unless they have the means of operating by key or otherwise, what corresponds to the handle in the accompanying drawings.

. The object of my invention is to provide a snap lock combined with a dead lock, working'automatically upon the closing of the door, window orshutter, and being dead- H locked when shut, the deadlock beingalso automatically disengaged whenthe handle or other opening means is actuated to openthe lock, bolt or catch, and not otherwise, the deadlock release being actuated by the slight jar occurring when the door, window or shutter is closed.

Another object of the invention is to provide such a device which may be readily incorporated in any of the well known forms of locks and which in a simplified form will be particularlyv adapted for catches for dumbwaiter doors and for doors to fire exits, and in all cases where it is desirable to, have a lock, or catch which may be readily opened fromthe inner side but which will be positively deadlocked, automatically when the door is shut, so that the bolt of the lock or catch cannot be forced back, until the opening device is actuated.

\Vith these and other objects in view my invention is shown in the accompanying drawings, and will be hereinafter fully described with reference thereto and finally pointed out in theclaims.

In the accompanying drawings, Figure 1 is a vertical sectional view of my improved device; 2 is a similar view showing the position of the parts before the door is closed again, having been once opened; Fig. 3 is a perspective view of the foregoingfrom the underside thereof; Fig. 4 isa sectional view with parts broken away of a slightly modi- 'fied form of construction; Fig.5 is a verti-' :oted to the casing opening 19 thereof, the tongue 20 of the tion of the V The operation is as follows, the tongue 20 cal sectional yiew of a further modified form or constructlon; Fig. 6 1s a plan sectional vlew of the last form. F 1g. 7 is a perspective View of a still further modified form and Fig. 8 is a detail of one of the parts thereof.

. Similar reference characters indicate corresponding parts throughout the several figures of the drawings.

Referring to-the drawings and more particularly to Fig. 1 thereof in which my invention is introduced in a latch such as is generally used on dumbwaiter doors, the houslng or casing 10 is provided at the foremost portion thereof with a contracted portion 11, in which is provided a squared opening12, a bolt 13 is provided in the said casing, the forward end of which is beveled so so as to slide into an opening to fit it on the door j amb and be caughtby the nose 1 1. The shaft 15 of the said bolt engages an opening 16 of the casing. As lever handle 17 is pivat 18 and extends out of an lever extends into the casing and engages at its forward end a cut out portion 21 of the bolt, the very tip of the said tongue being 7 in very close proximity to the yoke member 25. A spring 22 is provided on the shaft T 15 to press the bolt outward. A notch 23 is provided on the bolt a short distance from the yoke member 25, the said yoke member 25 being pivoted to the casing and held in engagement with the bolt by the spring 26. The following points must be noted in regard to'therelative position of the parts in this figure, namely, the action of the tongue 20 is to force the yoke 25 away from the bolt, and this action is further helped by the face of the yoke 25 being at an angle to the direcpivoted motion of the tongue.

moves the yoke 25 downward sufiiciently so that the yoke member 25 will not engage in the notch 23. The tongue not being actuated the yoke 25 would engage in the notch 23. WVhen the tongue 20 is actuated through movement of the handle 17 to Withdraw the bolt from the keeper, the end of the tongue first depresses the yoke member out of engagement with the notch 23, releasing the bolt and permitting the door to be opened. On the return movement of the tongue 20 it engages and is held with the yoke member 25 and the bolt 13 is prevented from finishing its forward movement until such time as the door is shut against the jam of the said door any instrument inserted between the door and then the slight occasioned by the said shutting causes the yoke to release the tongue 20. However before the yoke 25 re- I and the j amb.

It will be noted that in the forms shown in Figs. 1-, 2 and 3 no actual jar is necessary in order to spring the bolt fully out to the position shown in Fig. 1, from the POSllZlOIl shown in Fig. 2,-when the boltis repressed by the keeper for the reason'that if the bolt 13 be pressedbackward, the tongue 20 remaining 1n the position shown 1n lug. 2,

"when the pressure on the bolt is quickly released as it would be in passing into the jamb of the door, the bolt will quickly jump 'forward and strike sharply against the tongue 20, causing it to be released by the "yoke 25, and the bolt will return to the locked position shown in Fig. 1. This act on --will not however occur when the handle 17 Li a is used to retract the belt for the reason that the tongue" 20 returning with the bolt 13 impedes this action. s

In Fig. 4,1 have shown a. slightly modified form of carrying out my invention, in

a which I provide a lever 27 perpendicularly 35- disposed in normal position thereof,land engaging the slot inthe bolt eamncn oper-' ates through the openlng of the casing 31. Lil-yoke member 29 engages a notch 30 in the upper surface of the bolt in the full thrown position thereof, and acam surface 1s pro- 1 .vided at'the inner side of the lever 27, which when "the said lever is operated to retract the bolt, lifts the yoke 29 out of engagement with thenotch 30 and'thereby removes the deadlocking ell'ect of the said yoke when the bolt is retracted. The belt is temporarily arrested and prevented from full protraction before the yoke member 29 engages the notch 30,-by means of a lug provided on the upper surface of the bolt, having a beveled face 34L which engages the beveled corner 35 of the casing 81,21 spring 82 being provided on the under side of the bolt which causes the engagement of the saidbeveled 1 surfaces.

In this way the bolt is free to move when the same engages the keeper during closing of thedoor, but when the bolt is within the ke'eper, the shock of the con- "tact of the door with the door jam'b' causes the disengagement otthe notc'h33 from the beveled corner 35 of the casing, and the bolt is thereupon projected to its full locking positionr the yoke" engaging the notch and 'deadl o'cking the bolt.

' In the form of constructionshown in Figs.

5 and 6, my invention is embodied in a door -lock 'of the form operated by the turning of vided in a lag e2 formed on the bolt. In

projected position of the belt, a member l3 pivoted to the casing at 44 supported by a link e5 from the pivot point lO of the levers 38 and 39 engages a notch as on thebolt, thereby forming a deadlock. Another notch 47 is provided on the side of the bolt farthest from theoutsideyof the door, and a weightedinember 4:8 is pivoted to astandard l9, and is held in engagement 'with the underside of the said bolt by reason of a p ng 5 r v In ope'rationthe turning of the shaft 37 moves the bolt inwardly and causes the pivot point lOto be lowered thereby disengaging the member liiffI'OIn the notch 46. /Vhen the knob is released the bolt, is caught by the ena ement of the wei hted'member'es with t z; 4 a V the notch 47, before the member e3 deads locks the same by engagement with the notch V l6 and the bolt is yieldable and may be closed easily; The impact of the door with the frame, in closing howeverdisengages, the member 48 from the notch 47, and'thelbolt 'therefore becomes deadlocked engagement of the member with theinotch M.

In themodifiedform illustrated in'Figs. 7 and 8, my invention is embodied in a form of lock in which the lock proper 50 arranged on the door is provided with recesses 52 and 53, which engage projections 54c and 55 of a plate 56 secured to the door frame. Holes 57 are provided in the projections 5% which are engaged by locking member 58,

' shaped as indicated in Fig.8, and provided within the Vlock 59. These locking members areoperate'd levers 59 pivoted at some,

61, and moveddownwardly by a bar 62 which may be operated in any suitable manner. In order to preventth'e deadloeking of the bolt before the closing of the "door a catch device is employed, comprising a weighted member 65 pivoted at be, which engages a notch 67 ot the bar 62, when the lock is operated. This is disengaged by the impact of the deor whcnclosing."

It will be noted that when the hand is released from the lock after opening the held from its full return movement by en- 1 ga'gement of the end of the'tongue'with the yoke in the first form of my invention, or

engagement of-the'jlug 33, second form,

and by engagement of the weighted lever e8,in the 'la st fo rm Whenthe end of the and 55 door, it releases the handle orknob as the 1 comes into effect, and the momentum of the bolt caused thereby, is sufficient to fully project the bolt, causing the same to ride across the means for preventing its full return movement. It will therefore be seen that the means for preventing full return movement of the bolt does not come into effect when the spring of the bolt is permitted to exert its full driving force. This only occurs when the bolt is fully retracted and released without the least retaining effect thereon, and if the hand is held on the handle for only a fraction of its movement, the means for preventing full return movement of the bolt will operate. The shock of compact or jar when closing the door therefore, is not essential to the positive deadlocking of the device, but will make its successful operation a certainty, and Where the spring is of insufficient strength to overcome the effect of the means for preventing full returnmovement of the bolt, the shock of impact will alone be responsible for the releasing of the bolt and the deadlocking of the device.

My invention can be employed in many forms of locking devices, and I will have it understood that I can apply it-to all forms of-snap locks, where a deadlock is also desired, and that changes in the form, position, size, or functions of the parts from those disclosed will not change the principle or sacrifice any of the advantages of my invention, and that it will not make any vital change in the advantages of the said invention either to have the impact of the door against the jamb operate the deadlock 7 setting mechanism, solely by itself, or to have the same operated and released by the sharp spring forward of the bolt when the nose of the same passes over the jamb of the door or the catch provided thereon, so,

Having thus described my invention, what 'is claimed and what is desired to be secured by Letters Patent is V 1. In a locking device, a casing, a spring bolt in said casing provided with a nose adapted to project from said casing, means for retracting the bolt within said casing, means adapted to deadlock said bolt in the fully projected position thereof, said means for retracting said bolt adapted to disengage said deadlocking means, means adapted to prevent full projected movement of said bolt after retraction and adapted to hold said bolt out of engaging position with said deadlocking means, said last named means adapted to be disengaged by shock of impact to permit full thrust movement of said bolt and engagement therewith of said deadlocking means.

2. In a locking device, a casing, a spring bolt in said casing provided with a nose adapted to project from said casing and aving a cut out portion, an independent manual lever pivoted within said casing and provided with a handle projecting outward therefrom and with a nose engaging said out out portion to retract said bolt, means adapted to deadlock said bolt in the fully projected position thereof, said lever being adapted to disengage said deadlocking means from said bolt during retraction.

3. In a locking device, a casing, a spring bolt provided with a notch therein, means adapted to engage said notch in fully projected position of said bolt to deadlock the same, means for retracting said bolt, said retracting means adapted to disengage said deadlocking means from said notch to permit full retraction of said bolt, and means adapted to prevent full return movement of said bolt, said last named means adapted to be made inoperative by shock of impact to permit full return movement of said bolt, and engagement of said deadlocking means with said notch.

4. In a locking device, a casing, a bolt provided with a notch therein, a spring on said bolt, a spring pressed yoke member adapted to engage said notch in fully projected position of said bolt to deadlock the same, a handle provided with a lever, said lever engaging said bolt and adapted to retract the same against the force of said spring, said lever being provided with means for disengaging said yoke member from said notch to permit full retraction of said bolt, means adapted to prevent full return movement of said bolt, said last named means having a holding effect non-resistant to the full projecting strength of said spring, said last named means adapted to be made inoperative by the shock of impact to permit full return movement of said bolt and engagement of said yoke with said notch.

In testimony that I claim the foregoing as my invention, I have signed my name in presence of two subscribing witnesses.

THOMAS P. CONLON.

Witnesses:

D. Lewis MATTERN, F. Hoee. 

